Adjustable shelf.



r M. H. SMITH.

ADJUSTABLE SHELF. APPLICATION FILED J LY 28, 1911.

1,021,432, Patented M31126, 1912.

WITNESSES W q/{TTORNEX GIOLUMIIA PLANOORAPH cu" WASHINGTON n c MICHAELE. SMITH, .OF KANSAS CITY, MISSOURI.

ADJUSTABLE sHEIJF.

Specification of Letters Patent.

Patented Mar. 26, 1912.

Application filed July 28, 1911. Serial No. 641,541.

To all whom it may concern:

Be it known that I, MICHAEL H. SMITH, a I citizen of the United States,residing at. Kansas City, in the county of Jackson and State ofMissouri, have invented certain new and useful Improvements inAdjustable Shelves, of which the following is a specification.

My invention relates to improvements in adjustable shelves.

The object of my invention is to provide a shelf which can be readilyadjusted as to width and height.

The novel features of my invention are hereinafter fully described andclaimed.

In the accompanying drawings, which illustrate one form of my invention,Figure 1 is a perspective view of my improved shelf. Fig. 2 is anenlarged top view of a part of the shelf. Fig. 3 is a vertical sectionalview on the line ab of Fig. 2. Fig. 4 is a vertical section on the linec0l of Fig. 3.

Similar reference characters designate similar parts. l

1,1 denote two vertical posts which may be cylindrical or of othersuit-able formf Mounted respectively on the two posts 1, and preferablyvertically and circumferentially adjustable thereon are two crosssupports, each comprising, preferably, a member 2 having a longitudinalchannel in one side in which, at opposite sides of the adjacent post 1are longitudinally slidably mounted two members 3, each having alongitudinal slot 1 through which extends a bolt 5 having mountedthereon a nut 6 by which the member 3 is clamped to the channel member 2through which the bolts 5 extend. Each member 3 is provided, preferably,in its upper side with a semicircular notch or seat portion 7. Twohorizontal members comprising preferably two tubular bars 8 are disposedrespectively at opposite sides of the posts 1 and are mounted in thenotches 7, as shown in Fig. 1.

Each channel member 2 is provided with two notches 9 and 9 disposed oneabove the other at one side of the member and in which is mounted theadjacent post 1. Two U bolts 10 embrace respectively the posts 1 andextend respectively through the channel members 2 between the notches 9and 9. On the U bolts 10 are mounted nuts 11 by which the members 2 areclamped to the posts 1. By loosening the nuts 11 the mem-' bers 2 may bevertically or circumferentially adjusted on the posts Boxes or otherarticles to be supported may be placed upon the members 8, which may bedisposed at suitable distances apart by longitudinal adjustment of themembers 3 in the members 2.

I do not limit my invention to the structure described and shown asmodifications, within the scope of the appended claims, may be madewithout departing from the spirit of my invention Having thus describedmy invention, what I claim and desire to secure by Letters Patent, is

1. In an adjustable shelf, a cross support comprising two members one ofwhich is provided with a longitudinal channel, the other member beingslidably fitted in the channel and having an upwardly facingsemicircular seat portion, the channel member having two notches oneabove the other, means for clamping the two members together, a verticalpost mounted in said two notches, and clamping means for engaging thepost and channel member between said two notches. I

2. In an adjustable shelf, a cross support comprising an intermediatemember having a horizontal channel, two longitudinallv adjustablemembers mounted in said channel, and clamping means for securing thelongitudinally adjustable members to the intermediate member, theintermediate member having two notches one above the other, a verticalpost mounted in said notches, and clamping means intermediate of thenotches for securing the intermediate member to the post.

3. In an adjustable shelf, two vertical posts, two cross supportscomprising each two members one of which has a longitudinal channel, theother member being longltudinally adjustable in said channel, and meansfor clamping the two members together, the channel member havlng twonotches one above the other in which the adjacent post is mounted, theother member having an upwardly faclng seat portlon, means intermediateof the notches of the channel members for clamping the channel membersto said posts respectively, and a horizontal bar mounted in said seatportions.

1. In an adjustable shelf, two vertical posts, two cross, supportscomprising each an intermediate member having a horizontal channel, twolongitudinally adjustable members mounted in said channel, and clampingmeans for securing the adjustable members to the intermediate member,the intermediate members each having two notches disposed one above theother in which is mounted the adjacent post, the longitudinallyadjustable members having each an upwardly facing seat portion, meansintermediate of the notchesof each intermediate member for clamping thein termediate member to the adjacent post, and two horizontal barsmounted respectively at opposite sides of said posts in the seatportions of adjacent longitudinally adjustable members.

In testimony whereof I have signed my name to this specification inpresence of two subscribing witnesses.

MICHAEL H. SMITH.

\Vitnesses:

E. B. HOUSE, FLORENCE M. VENDIG.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

